Current-rectifying system.



G. W. SIRCH. OU'RRENT RBCTIFYING SYSTEM. APPLICATION FILED JAN. 16,1907. RENEWED 00T.10, 1907.

1, 1 33,447. Patented Mar. 30, 1915.

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,orrjion.

CHARLES W. SIRCH, OF LOS ANGELES, CALIFORNIA.

CURRENT-RECTIFYING SYSTEM.

Specification of Letters Patent.

Patented Ma 30, 1914'.

Application filed January 16, 1907. Serial No. 352,492. Renewed October10. 1907. Serial No. 396.774.

To all 'wm it may concern:

lie it known that I, CHARLES \V. Smcn, citizen of the l nitcd States,residing at Los Angeles; in the county of Los Angeles and State oitalifornia. have invented a certain new and useful Improvement inCurrentliectitying Systems, of which the following a full. clear,concise. and exact description, reference being had to the accompanyingdrawings. forming a part of this specificatiOh.

My invention relates to current rectitiers and more particularly to animproved arrangement. the operation of which will be reliable andellicient.

The arrangement and operation of my invention will he. clearlyunderstood by a rcfercnce to the accompanying drawing, in which- Figure1 is a diagrammatic view illustrating the arrangement which I propose;Fig. '2 shows the wave form which would be one part alone of thecombination employed; and Fig. 3 illustrates a continuous direct currentwave form as obtained by my system.

In Fig. 1, the mains 10 and 11 lead from an alternating current.generator G. The lead 11 connects directly with the active electrode 13of the electrolytic interrupter device 14, while the lead 10 connectswith the contact 25 adapted to he engaged by armature 2-1, whichconnects with the other active electrode 12 through conductor 10. iDirect currentt-ranslating devices 26, 26 connectwith conductors 16 and17 of a local direct current circuit. A double pole switch 27 serves toconnect conductor. 1.7 with conductor 18, which leads to the neutralelectrode 15 of the interrupter device, and conductor 16 with conductor19, which leads to p the alternating current main 10 and includes theWinding 19 of a choke coil, this winding surrounding the core 23 placedproximate to armature 24. When there is no current flow through thiswinding, the armature 24 is disconnected from contact 25 to disconnectmain 1.0 from the rectifier. However, upon current flow through saidWinding, the core becomes magnetized to attract the armature 94 againstcontact 25, thereby connecting mainl with the electrolytic interrupter.

,The principles and features of operation, of my improved system are asfollows: As is understood by those skilled in the art, the electrodes 12and 13 are of some material,

such as aluminum, to which current can How. Hit from which currentcannot flow. This being the case, the electrodes 12 and 13, with theelectrode 1.). form an electrolvtic condensing interrupter, and uponcurrent flow from the generating means with which the electrodes areconnected. these electrodes will he charged, and upon breaking of thecircuit or upon passage of the current from the positive to thenegative. lield, or vice versa, the electrolytic condenser will tend todischarge. This operation I take advantage of in my system. For thepurpose of illustration, suppose the generating means was set inoperation to cause a current impulse to flow. The electrodes 19 and 13,being connected with the terminals of the generator (it being: assumedthat the local direct current circuit is closed and armature 9.4attracted), will receive this charge, but there can he no current flowbetween the-electrodes for the reason, as already stated. that it isimpossible for current to flow from either of them. The current impulse,however, finds its way from the main 10 through the winding 19 of thechoke coil, through conductor 19, through conductor .16, through thetranslating devices 26, through conductors 17 and 18, throughthe anodeelectrode 15, through the electrode 13, and through main 11 back to thegenerator. As soon as a reversal takes place inthe generator G, theelectrolytic condensing interrupter, including the cathode electrodes 12and 13, tends to dis charge, and the circuit which I provide forreceiving the discharge current flow includes the translating devicesand the choke coil, being traced as follows: From electrode 12, throughconductor 10",

devices 26, conductors ductor 16, translating 15, and through the 17 and18, electrode electrolyte to the electrode 13, and this dis.

bined etiect on file resultant current flow will be a complete fillingin of direct current flow between the effective impulses of cur- Uponcessathrough the of the choke rent flow from the generator. tion ofeffective current flow choke coil, the kick or discharge through winding19" of the choke coil, through conductor 19, 0011-.

vention are directed toward filling in the gaps between the wavesshownin Fig. 2.

Referring now to the diagram of Fig. .3, 0' indicates the datum line,as, a represent current impulses formed directly from the generator tothe translating devices, while y, y represent current impulses suppliedby virtue of. the capacity and incharge circuit ductance effects. If theadjustment is properly made, the waves a: and y, 3 and w, and :c' and 1will connect; or, in other words, the current through the translatingdevices will be continuous and unidirectional. If the choke coil werenot present, the resultant current formed tions would be somewhat likethat indicated by dotted lines in the'figure just referred to, thecondenser discharge being exceedingly rapid. The eli'ect, however, ofthe inductance of the choke coil in the circuit is to spread out thecurrent through the disso that the current flow will be continuous. Thecurrent caused by the discharge or kick of the choke coil would not besufficient to fill in the gaps'between the generator pulsations, but bytaking advantage of the capacity effect of the electrolytic device,the'condenser discharge current, together with the kick current and themutual effect of the inductance and capacity, will result inthe completefilling in of the gaps to form a unidirectional current flow through thetranslating devices.

In Fig. l, the core of shown as having a movable section 20, whereby theinductance effect can be regulated and adjusted. If the armature 24 werenot provided, it would be necessary to provide a separate switch fordisconnecting the cell 'from the generator, but, where this armature isprovided, closure of the trans 0 indicates the datum -lar nps, and thenth between generator pulsathe choke coil is m name this fifth day latingcircuit will result automatically in closure of the branch 10 andoperative connection of the electrolytic cell with the enerator. Tostart the system it is, there ore, only necessary. to close the switch21, whereupon circuit will be -immediately closed through the choke coilwinding and its armature attracted to connect the electrode 12 incircuit. The switch 27 could, of course, be oniitted and individualswitches placed 60 at the translating devices. F or example, thesetranslating devices could be electric e mere turning of the close thecircuit through set the system in operalamp switch would the choke coiland tion.

Having thus described my-invention, claim as new and desire to secure byLetters atent:

In a rectifying system of the class described the combination of analternating current source, conductors leading from said source anelectrolytic device connected with said conductors, a unidirectionalcurrent translating circuit connected with one of said conductors andwith the electrolytic device, ,said electrolytic device acting to allowthe pulsations of only one polarity to flow through the translatingcircuit, a choke coil causing a charge in the translating circuitfromthe alternating current source and permitting the discharge of theelectrolytic :device throughthe'translating circuit after {eachcessation of current flow from the alter- .nating current source, acontact and an armature actuated by said choke coil, the inductance ofthe choke coil and the capacity of the electrolytic device being sorelated to each other that the coi'nbined effect on the resultant flowof cu, rent through the translating circuit is a complete filling in ofdis rect-current flow between the effective impulses of current from thealternating cur v rent source through the translating circuit.

In Witness whereo I hereunto subscribe of Dec. A. D., 1906.

I CHARLES W. SIRCH.

WVitnesses:

J. JA vronTMELL, L. AvrSE.

